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A bug that starts by itself

novembre 8, 2010 Technology No Commenti

Those who work in the surveillance field, such as law enforcement officers and private investigators, know that during an environmental eavesdropping operation, the amount of time occupied by background noises and useless sounds far exceeds that of conversations actually useful to the investigation.

For example, when planting a bugging device in an office, it may happen that the person under surveillance is not talking to anyone for long hours, and the eavesdropping operation would return only background noise, such as typing on a computer keyboard.

This kind of sounds make the process of listening to the information collected a long and tedious job, and especially if the bug is battery powered, it could run out of juice without giving real results. Therefore, care should be taken to optimize the operation of surveillance devices, using a tool such as a voice-activated bug.

This kind of bug, thanks to its activation sensor, can start working only when the sensor detects a sound above a certain threshold, thus avoiding to record and transmit background noise instead of real intelligence.
It is a GSM bug, with a SIM card just like that of an ordinary phone, which is used to transmit sounds and voices to a preset phone number, at any distance, even on the other side of the world!

The programming of its features (sensitivity, activation alert and so on) can be conveniently done via SMS, thus ensuring absolute safety. By connecting the GSM bug to the landline phone cables, you can easily listen to all incoming and outgoing calls, automatically starting to listen when the handset is released.

For more information and details about how GSM bugs are working, you can visit the Endoacustica website and contact our professional staff.


dicembre 28, 2009 Technology No Commenti


GSM bugs are covert listening devices which, in order to transmit their intelligence, use the mobile phone network, thanks to a SIM card installed on them.

Among the endless possibilities offered by the eavesdropping devices market, the usage of a GSM bug has become more and more widespread, especially in the last few years, thanks to the possibility of carrying out surveillance operations without distance limits or radio coverage problems, this safeguarding the listener’s security and privacy, as he will no longer need to be hidden nearby but will be able to be sitting literally anywhere.

The increasing popularity of GSM bugs is due to the fact that they only come with advantages, such as the clarity of their signal (thanks to the digital network), the possibility of sending said signal worldwide just like you would do with a normal phone call, and all this without having to use any particular receiving device other than a normal mobile phone.

Our GSM-001 listening device is made up of a small shell with two cables, used to power the device and to connect it to a microphone with high sensitivity features. On the inside, along with the housing where the SIM card is placed, you can find a processor which manages all of the bug
‘s functionalities.

Generally, for all other covert listening devices based on GSM technology, one has to call the SIM card’s phone number to start listening in. In this case, the device is equipped with a high-sensitivity automatic activation sensor, which makes it possible to have the bug place a call towards a preset number. This happens when its built-in sensor detects a movement, a sound or, if planted inside a car, when the vehicle is started.

Furthermore, programming the settings can be done without being physically near the bug, as you just need to send a simple text message in a particular format, to make sure that the processor reads it as an operating command, enabling or disabling the relevant functions, or setting the sensitivity level of either the microphone or the sensor.

By sending an SMS it will be possible not only to change settings of the various functions, but also to reset the bug, in order to prevent it from being intercepted by any bug sweeping devices nearby. We will also be able to set up the telephone numbers enabled to control the bug, those towards which it will send a text notification, or those to be automatically called as soon as the sensor detects a motion.

You can also send a simple SMS to receive directly on your phone a report, where you will see the status of all functionalities installed on your GSM listening device.

Once you get hold of your bug, you also have to get to know the characteristics of the place where you intend to plant it, as well as the duration of the surveillance operation, in order to choose the most suitable power option for our needs. In fact, if the bug will have to stay away from us for a long time, or if we need a continuous monitoring, we will have to power it through the mains, in order to avoid performance gaps caused by a low or exhausted battery.

We will not have this kind of problem if our surveillance operation is a short-term one (up to one week), and non continuous, as in this case a normal 9V battery will be more than enough. Once the location and the power option of your bug have been set up, we will have to set up the usage mode.

At this point we will have to choose whether we will be calling our bug, or it will be calling us. Also, if installed inside a vehicle, we will have to choose whether we want or not to receive an SMS notification as soon as the car’s engine is started or stopped.

In order to make all this possible, we will have to choose the phone numbers that are enabled to call our bug to listen to the conversations around it, or those towards which the bug will call directly as soon as its sensor picks up a motion or a voice. For bugs planted inside a vehicle, we will have to set up the number towards which a notification must be sent in this case.

At the same time, you can set the sensitivity level of the activation sensor, in order to minimize the possibility of false alarms, caused by some noise coming from outside. For each of these functions, a maximum of three numbers enabled to control the device can be set.

Along with all the functions highlighted above, by sending a simple SMS you can run several utilities, such as restarting the bug, resetting it to factory settings, switching it off to prevent it from being detected by bug sweepers, enabling or disabling the flashing LED light, or setting up callback options in case of line failure.

In a few words, as you can see, by using a GSM bug you have at your disposal a faithful friend for your surveillance operations, with a high degree of flexibility that allows you to tailor its usage to best suit your needs, to make sure that success is achieved without any risk!

GSM bug, the defining standard for long-distance surveillance

novembre 15, 2009 Technology No Commenti


Among the GSM type listening devices, that is, those hidden listening systems that feature a SIM card just like your normal mobile phone, and that are capable of transmitting their intelligence by using the GSM phone network, a special place is taken by the GSM-001 model.

In the investigation, surveillance and intelligence field, usage of GSM bugs shows undeniable advantages, especially in terms of comfort and safety, as the surveillance operation can be carried out from an unlimited distance, with a clear signal delivered by the digital phone network, and without having to use complicated and expensive radio receiving equipment with a limited operating range.

Inside a small box, the GSM bug contains the SIM card housing, mounted on a circuit board which contains the real core of the entire system. Unlike what happens with most normal listening devices of this kind, there is no need to call the GSM bug’s phone number to listen to what goes on around it.

On the contrary, thanks to its voice activation sensor, it will be the GSM transmitter to call us automatically when its high-sensitivity hidden microphone picks up a sound or a motion. And in the same fashion, but via SMS, for audio transmitters installed for example inside a vehicle, when the car is switched on or off the sensor will be activated, and the micro transmitter will send us a text message towards a preset number.

In fact, the possibility of programming its features remotely by sending an SMS, and of receiving notifications in the same format makes this listening device perfect to guarantee privacy and confidentiality.

Thanks to an SMS written in a particular format, you will for example be able to set up the number, towards which such notifications will have to be sent, or the preset number from which you can call the GSM transceiver (which will answer only when calls are coming from that particular number), or disable the GSM audio transmitter at once, and of course enable it later. You will also be able to receive a status report of the bug’s functionalities.

Depending on the audio surveillance operation we wish to undertake, we will have to choose whether to power our bug via the electricity mains, or with a normal 9V battery. The former is recommended for long-term hidden listening operations, while the latter is suitable for short term surveillance operations lasting just a few days.

Once this decision is made, you will have to configure the controlling number as explained above, and the number towards which your GSM transmitting device will call you as soon as its sensor detects a sound. It will also be possible to set the sensor sensitivity level, in order to allow it to call only when it is really necessary, and also set up the calling parameters when the vehicle is turned on or off.

For each function, it is possible to program up to three numbers that the bug will call. Of course, we will also have to make sure that, if the SIM card is a rechargeable one, it has enough credit, especially if the eavesdropping operation involves international or overseas calls.

For more information about how GSM bugs, hidden microphones and a wide range of surveillance and security devices are working, you can visit the Endoacustica site and contact our specialists, who will be glad to assist you.


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Text ADS

spyphone A Spy Phone or GSM spy cellphone is a normal mobile phone on which has been installed a software able to reply many crucial information such as: listening of all incoming and outgoing calls from the mobile, real time phone surrounding sounds, reading of all type of messages (SMS, WhatsApp, Facebook, Viber etc..) and GPS tracking. The spy software works on the most of Android, iOS, Blackberry smartphones.

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